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  <a name="ZH-CN_TOPIC_0000001853243249"></a><a name="ZH-CN_TOPIC_0000001853243249"></a>
  <h1 class="topictitle1">周期性执行备份</h1>
  <div>
   <p>将需要保护的资源关联到指定SLA策略，系统将对这些资源按照SLA策略进行保护。</p>
   <div class="section">
    <h4 class="sectiontitle">注意事项</h4>
    <p>全量备份失败后，如果下一次备份是增量备份，由于增量备份依赖上一次成功的全量备份副本，该增量备份将自动转换为全量备份。</p>
   </div>
   <div class="section">
    <h4 class="sectiontitle">前提条件</h4>
    <p id="ZH-CN_TOPIC_0000001853243249__zh-cn_topic_0000001806524390_p17201613205718">执行备份前，请确保Exchange Server服务和相关的依赖服务正常运行。对应服务可参考<a href="https://learn.microsoft.com/zh-cn/exchange/plan-and-deploy/deployment-ref/services-overview" target="_blank" rel="noopener noreferrer">Exchange 服务器上的 Exchange 服务概述</a>。</p>
   </div>
   <div class="section">
    <h4 class="sectiontitle">操作步骤</h4>
    <ol>
     <li><span>选择<span class="uicontrol" id="ZH-CN_TOPIC_0000001853243249__zh-cn_topic_0000001839142377_uicontrol26447265316">“<span id="ZH-CN_TOPIC_0000001853243249__zh-cn_topic_0000001839142377_text8644926538">保护</span> &gt; <span id="ZH-CN_TOPIC_0000001853243249__zh-cn_topic_0000001839142377_text1310114196546">应用</span> &gt; <span id="ZH-CN_TOPIC_0000001853243249__zh-cn_topic_0000001839142377_text2114145125312">Exchange</span>”</span>。</span></li>
     <li><span>在<span class="uicontrol">“单机/可用性组”</span>或<span class="uicontrol">“<span>数据库</span>”</span>页签，选择需要保护的单机、可用性组或数据库资源，选择“<span>更多</span>”，单击<span class="uicontrol">“<span>保护</span>”</span>。</span><p></p><p>您也可以勾选多个资源进行批量保护。</p> <p></p></li>
     <li><span>选择SLA。</span><p></p><p>您也可以单击<span class="uicontrol">“<span>创建</span>”</span>，创建新的SLA。</p> <p></p></li>
     <li><span>配置Exchange单机、可用性组或数据库备份高级参数。</span><p></p>
      <div class="p">
       相关参数说明如<a href="#ZH-CN_TOPIC_0000001853243249__zh-cn_topic_0000001506038733_table354613271506">表1</a>所示。 
       <div class="tablenoborder">
        <a name="ZH-CN_TOPIC_0000001853243249__zh-cn_topic_0000001506038733_table354613271506"></a><a name="zh-cn_topic_0000001506038733_table354613271506"></a>
        <table cellpadding="4" cellspacing="0" summary="" id="ZH-CN_TOPIC_0000001853243249__zh-cn_topic_0000001506038733_table354613271506" frame="border" border="1" rules="all">
         <caption>
          <b>表1 </b>Exchange单机/可用性组或数据库备份高级参数说明
         </caption>
         <colgroup>
          <col style="width:19.75%">
          <col style="width:80.25%">
         </colgroup>
         <thead align="left">
          <tr>
           <th align="left" class="cellrowborder" valign="top" width="19.75%" id="mcps1.3.4.2.4.2.1.2.2.3.1.1"><p>参数</p></th>
           <th align="left" class="cellrowborder" valign="top" width="80.25%" id="mcps1.3.4.2.4.2.1.2.2.3.1.2"><p>说明</p></th>
          </tr>
         </thead>
         <tbody>
          <tr>
           <td class="cellrowborder" valign="top" width="19.75%" headers="mcps1.3.4.2.4.2.1.2.2.3.1.1 "><p>执行VSS副本一致性校验</p></td>
           <td class="cellrowborder" valign="top" width="80.25%" headers="mcps1.3.4.2.4.2.1.2.2.3.1.2 "><p>开启后，将对备份的每个数据库文件验证其完整性，以保证备份数据的正确性。</p></td>
          </tr>
          <tr>
           <td class="cellrowborder" valign="top" width="19.75%" headers="mcps1.3.4.2.4.2.1.2.2.3.1.1 "><p>可用性组备份</p></td>
           <td class="cellrowborder" valign="top" width="80.25%" headers="mcps1.3.4.2.4.2.1.2.2.3.1.2 "><p>仅当对可用性组或可用性组的数据库添加或修改保护时，可以设置可用性组备份参数。</p>
            <ul>
             <li>备份主动数据库副本</li>
             <li>备份被动数据库副本</li>
            </ul></td>
          </tr>
          <tr>
           <td class="cellrowborder" valign="top" width="19.75%" headers="mcps1.3.4.2.4.2.1.2.2.3.1.1 "><p><span>备份前执行脚本</span></p></td>
           <td class="cellrowborder" rowspan="3" valign="top" width="80.25%" headers="mcps1.3.4.2.4.2.1.2.2.3.1.2 "><p>仅对单机或单机的数据库添加保护时，可以设置“<span>备份前执行脚本</span>”、“<span>备份成功执行脚本</span>”和“<span>备份失败执行脚本</span>”，当备份任务事件中出现“开始执行前置任务”提示后，配置的脚本会在对应场景下执行。</p> <p><span>请输入脚本名称，脚本名称以</span><strong>.bat</strong><span>结尾。确保脚本已存放在数据库主机安装目录下的</span><span class="filepath">“DataBackup\ProtectClient\ProtectClient-E\bin/thirdparty”</span><span>目录中，且登录数据库主机的用户（默认为</span><strong>Administrator</strong><span>）对该脚本有可执行权限。如果无执行权限请依次执行以下操作授权：</span></p> <p>选择该脚本，单击鼠标右键，选择“属性 &gt; 安全”，在弹出的对话框中选择<strong>Administrator</strong>用户，单击“编辑”更改权限。</p> <p>支持的脚本类型为<span class="uicontrol">“.bat”</span>。</p>
            <div class="note">
             <span class="notetitle"> 说明： </span>
             <div class="notebody">
              <ul>
               <li><span>当配置了</span><span class="uicontrol">“<span>备份成功执行脚本</span>”</span><span>时，即使该脚本执行失败，管理界面上也会显示备份任务的状态为</span><span class="uicontrol">“<span>成功</span>”</span><span>。请您留意任务详情中是否有后置脚本执行失败的相关提示，如有请及时修正脚本。</span></li>
               <li>可根据实际情况，在备份任务执行前、或恢复任务执行成功后、或备份任务执行失败后，执行用户自定义的脚本，脚本类型为bat。若将脚本放置在DataBackup\ProtectClient\ProtectClient-E\bin\thirdparty目录下，则只需填写脚本名称，若将脚本放置在其他目录下，则需要填写脚本绝对路径。</li>
              </ul>
             </div>
            </div> <p></p></td>
          </tr>
          <tr>
           <td class="cellrowborder" valign="top" headers="mcps1.3.4.2.4.2.1.2.2.3.1.1 "><p><span>备份成功执行脚本</span></p></td>
          </tr>
          <tr>
           <td class="cellrowborder" valign="top" headers="mcps1.3.4.2.4.2.1.2.2.3.1.1 "><p><span>备份失败执行脚本</span></p></td>
          </tr>
         </tbody>
        </table>
       </div>
      </div> <p></p></li>
    </ol>
    <ol start="5">
     <li><span>单击<span class="uicontrol">“<span>确定</span>”</span>。</span><p></p><p>如果当前系统时间已晚于该SLA首次备份的开始时间，则关联备份SLA后可以选择在当前立即执行备份或者根据SLA中设置的备份策略等待下次调度。</p> <p></p></li>
    </ol>
   </div>
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     <strong>父主题：</strong> <a href="zh-cn_topic_0000001806524370.html">步骤4：执行备份</a>
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